Attorney General Eric Holder is ordering a federal medical examiner to perform an additional autopsy on the body of Michael Brown.

The move comes at the request of Brown's family.

The unarmed Black teen was shot to death by a police officer in Ferguson, Missouri more than a week ago.

Meanwhile, Reverend Al Sharpton will be back in Ferguson today. Sharpton will hold a rally this afternoon to call for justice in Brown's shooting. Brown's parents and the son of Dr. Martin Luther King, Jr. are expected to take part.